Through the 90-day period concluding January 14, 2026, Odyssey Marine Exploration's top three insider stakeholders include TenPercentOwner Gallardo Juan Antonio Carlos Cortina (3.93Mn shares), Director Mark B Justh (859.21K shares), Chief Executive Officer Mark Gordon (482.24K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Gallardo Juan Antonio Carlos Cortina | 3,931,466 | 13 Aug, 2025 | |
| Mark B Justh | 859,207 | 03 Jul, 2025 | |
| Mark Gordon | Chief Executive Officer | 482,235 | 20 Oct, 2025 |
| John D Jr Longley | President & Coo | 150,313 | 15 Oct, 2025 |
| Todd E Siegel | 106,965 | 08 Jan, 2026 | |
| Jay Nudi | Pao/Treasurer | 97,826 | 03 May, 2022 |
| Jon D Sawyer | 79,580 | 08 Dec, 2025 | |
| Laura Lionetti Barton | Chief Business Officer | 77,755 | 16 Jun, 2022 |
| James S Pignatelli | 64,348 | 18 Jan, 2023 | |
| Larissa Tiffany Pommeraud | 36,549 | 07 Jan, 2026 | |
| Christopher Emlyn Jones | Chief Financial Officer | 1,997 | 17 Mar, 2022 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 06 Jan, 2026 | Todd E Siegel | Common Stock | A | 7,653 | $0.00 | 106,965 | D | A |
| 06 Jan, 2026 | Larissa Tiffany Pommeraud | Common Stock | A | 10,204 | $0.00 | 36,549 | D | A |
| 05 Dec, 2025 | Todd E Siegel | Common Stock | A | 7,282 | $0.00 | 99,312 | D | A |
| 05 Dec, 2025 | Jon D Sawyer | Common Stock | A | 4,854 | $0.00 | 79,580 | D | A |
| 05 Dec, 2025 | Larissa Tiffany Pommeraud | Common Stock | A | 4,854 | $0.00 | 26,345 | D | A |
| 06 Nov, 2025 | Todd E Siegel | Common Stock | A | 7,042 | $0.00 | 92,030 | D | A |
| 06 Nov, 2025 | Jon D Sawyer | - | - | 74,726 | D | |||
| 06 Nov, 2025 | Jon D Sawyer | Common Stock | A | 4,695 | $0.00 | 74,726 | D | A |
| 06 Nov, 2025 | Larissa Tiffany Pommeraud | Common Stock | A | 4,695 | $0.00 | 21,491 | D | A |
| 20 Oct, 2025 | Mark Gordon | Common Stock | D | 30,000 | $3.56 | 482,235 | D | S |
| 17 Oct, 2025 | Mark Gordon | Common Stock | D | 30,000 | $3.50 | 512,235 | D | S |
| 16 Oct, 2025 | Mark Gordon | Common Stock | D | 30,000 | $3.87 | 542,235 | D | S |
| 15 Oct, 2025 | Mark Gordon | - | - | 572,235 | D | |||
| 15 Oct, 2025 | Mark Gordon | Common Stock | D | 30,000 | $3.98 | 572,235 | D | S |
| 14 Oct, 2025 | Mark Gordon | - | - | 602,235 | D | |||
| 14 Oct, 2025 | Mark Gordon | Common Stock | D | 30,000 | $3.74 | 602,235 | D | S |
| 14 Oct, 2025 | John D Jr Longley | - | - | 150,313 | D | |||
| 14 Oct, 2025 | John D Jr Longley | - | - | 293,813 | D | |||
| 14 Oct, 2025 | John D Jr Longley | Common Stock | D | 73,572 | $3.75 | 150,313 | D | S |
| 14 Oct, 2025 | John D Jr Longley | Common Stock | A | 143,500 | $0.41 | 293,813 | D | M |